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Finding the Fourth Proportional to 364.06, 502.36 and 216.78

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Solution

The fourth proportional to 364.06, 502.36 and 216.78 is: 299.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.06 : 502.36 = 216.78 : x
  2. Step 2: Convert to fraction form
    364.06/502.36 = 216.78/x
  3. Step 3: Cross multiply
    364.06x = 502.36 × 216.78
  4. Step 4: Simplify right side
    364.06x = 108,901.60
  5. Step 5: Solve for x
    x = 108,901.60/364.06
  6. Step 6: Final answer
    x = 299.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.